I'm going to try a new IC pump. The one I have never feels like it is vibrating. I had heard that if the pump ws bad the SC would still work when the motor was cold and mine never did. I guess I have to try. It has had the pump replaced as the wires have been cut and spliced into. I'll get a couple of pics to Rob at NeedsWings and he will determine what I have and need. I will stll need somebody to install the pump due to my back and hip. An oil change might be a good idea also, maybe a tune up if I have the cash for that this month.